Hybrid vehicle drive apparatus

a hybrid vehicle and drive apparatus technology, applied in the direction of mechanical actuated clutches, gearing details, transportation and packaging, etc., can solve the problems of adversely affecting the performance and service life of the motor

Active Publication Date: 2019-01-01
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]An aspect of the present invention is a hybrid vehicle drive apparatus, including: a prime mover having an output shaft rotatable around an axis line; a transmission having an input shaft rotatable around the axis line; an electric motor having a rotor of substantially cylindrical shape provided between the prime mover and the transmission to be rotatable around the axis line, and a stator arranged around the rotor; a first clutch of multi-plate wet type arranged radially inward of the rotor and configured to connect and disconnect a first power transmission path between the output shaft of the prime mover and the electric motor; a second clutch of multi-plate wet type arranged radially inward of the rotor and side by side with the first clutch in an axial direction of the axis line, and configured to connect and disconnect a second power transmission path between the electric motor and the input shaft of the transmission; and a cover member having a first sidewall member and a second sidewall member each extending radially and a connection member of substantially cylindrical shape configured to connect the first sidewall member and the second sidewall member, the cover member being rotatably provided around the axial line to integrally rotate with the electric motor, the cover member forming a clutch chamber enclosing the first clutch and the second clutch by means of the first sidewall member, the second sidewall member and the connection member, the cover member being formed with an oil discharge port connecting the clutch chamber and a drain oil chamber sideward of the clutch chamber, wherein the cover member has a first cover member and a second cover member axially disassemblable at the connection member, and each of the first cover member and the second cover member has a fitting member fitted in the axial direction to be integrally rotatable with each other.

Problems solved by technology

Since hot oil therefore hits the motor, performance and service life of the motor is adversely affected.

Method used

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Embodiment Construction

[0014]An embodiment of the present invention is explained in the following with reference to FIGS. 1 to 7. An embodiment of the present invention is applied to a front-wheel-drive (FF layout) hybrid vehicle having an engine and an electric motor as propulsion power sources. However, the hybrid vehicle is not limited to the front-wheel-drive layout and can instead adopt some other type of drive system (e.g., a rear-wheel-drive layout). FIG. 1 schematically illustrates overall configuration of the hybrid vehicle drive system 100 according to an embodiment of the present invention.

[0015]As shown in FIG. 1, the drive apparatus 100 comprises an engine 1, a motor 2, a transmission 3, a disconnect clutch 4, a start clutch 5, and a battery 6.

[0016]The engine 1 is an internal combustion engine powered by explosively burning fuel, and can be a gasoline, diesel or other type internal combustion engine. An output shaft 1a is constituted by a crankshaft or by a rotating shaft connected to a cran...

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Abstract

A hybrid vehicle drive apparatus, including a prime-mover-output-shaft, a transmission-input-shaft and a motor-rotor provided therebetween, each rotatable around an axis-line, a first-clutch arranged radially inward of the rotor to connect / disconnect the output-shaft and the motor, a second clutch arranged radially inward of the rotor axially in tandem with the first-clutch to connect / disconnect the motor and the input-shaft, and a cover-member having a radially extending first, second-sidewall-members and a substantially cylindrical connection-member connecting the first, second-sidewall-members, integrally rotatable with the motor, forming a clutch-chamber enclosing the first, second-clutches by means of the first, second-sidewall-members and the connection-member, and formed with an oil-discharge-port connecting the clutch-chamber and a drain-oil-chamber sideward of the clutch-chamber, wherein the cover-member has first, second-cover-members axially disassemblable at the connection-member and each having a fitting-member fitted integrally rotatable with each other.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2017-088608 filed on Apr. 27, 2017, the content of which is incorporated herein by reference.BACKGROUND OF THE INVENTIONField of the Invention[0002]This invention relates to a drive apparatus for a hybrid vehicle which has an engine and an electric motor as a traveling driving source.Description of the Related Art[0003]As apparatuses of this type are known ones that comprise a first clutch for connecting and disconnecting an engine and an electric motor (motor-generator) and a second clutch for connecting and disconnecting the electric motor and a transmission. Such an apparatus is set out in Japanese Unexamined Patent Publication No. 2002-087080 (JP2002-087080A), for example. In an apparatus set out in JP2002-087080A, a substantially cylindrical clutch casing is rotatably supported on a shaft member of a housing, an electric motor rotor ...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): B60K6/40F16D25/10F16H57/023B60K6/387B60K6/26B60L15/20F16D21/08B60L50/16
CPCF16D25/10B60K6/26F16H57/023B60K6/387F16D21/08B60L15/2054B60K6/38B60K2006/381F16H57/043F16H57/0436F16H57/0471F16H57/0473B60K6/40B60K6/48B60K2006/4825F16D25/0638F16D2021/0661F16D25/14Y02T10/72Y02T10/62Y02T10/64F16D25/123
InventorSATOYOSHI, TAKASHIIIZUKA, KOHEI
OwnerHONDA MOTOR CO LTD